feat(openapi): generate OpenAPI specs from TypeSpec sources

Migrate hand-written OpenAPI YAML to TypeSpec (.tsp) source files.
TypeSpec compiles to OpenAPI 3.0 YAML, enabling type-safe API definitions.

- Add typespec/ directory with api-server and fortee definitions
- Integrate TypeSpec build into `just gen` and `just build` pipelines
- Update backend handler code to match new generated type names
  (inlined error responses, separate GameType/ProblemLanguage enums)
- Regenerate frontend TypeScript types from new OpenAPI output

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 10 insertions, 30 deletions

diff --git a/backend/api/handler_wrapper.go b/backend/api/handler_wrapper.go
index b88ddb2..5feaac7 100644
--- a/backend/api/handler_wrapper.go
+++ b/backend/api/handler_wrapper.go
@@ -29,9 +29,7 @@ func (h *HandlerWrapper) GetGame(ctx context.Context, request GetGameRequestObje
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return GetGame401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.GetGame(ctx, request, user)
@@ -41,9 +39,7 @@ func (h *HandlerWrapper) GetGamePlayLatestState(ctx context.Context, request Get
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return GetGamePlayLatestState401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.GetGamePlayLatestState(ctx, request, user)
@@ -53,9 +49,7 @@ func (h *HandlerWrapper) GetGameWatchLatestStates(ctx context.Context, request G
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return GetGameWatchLatestStates401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.GetGameWatchLatestStates(ctx, request, user)
@@ -65,9 +59,7 @@ func (h *HandlerWrapper) GetGameWatchRanking(ctx context.Context, request GetGam
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return GetGameWatchRanking401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.GetGameWatchRanking(ctx, request, user)
@@ -77,9 +69,7 @@ func (h *HandlerWrapper) GetGames(ctx context.Context, request GetGamesRequestOb
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return GetGames401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.GetGames(ctx, request, user)
@@ -89,9 +79,7 @@ func (h *HandlerWrapper) GetMe(ctx context.Context, request GetMeRequestObject)
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return GetMe401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.GetMe(ctx, request, user)
@@ -101,9 +89,7 @@ func (h *HandlerWrapper) GetTournament(ctx context.Context, request GetTournamen
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return GetTournament401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.GetTournament(ctx, request, user)
@@ -113,9 +99,7 @@ func (h *HandlerWrapper) PostGamePlayCode(ctx context.Context, request PostGameP
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return PostGamePlayCode401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.PostGamePlayCode(ctx, request, user)
@@ -125,9 +109,7 @@ func (h *HandlerWrapper) PostGamePlaySubmit(ctx context.Context, request PostGam
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return PostGamePlaySubmit401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.PostGamePlaySubmit(ctx, request, user)
@@ -141,9 +123,7 @@ func (h *HandlerWrapper) PostLogout(ctx context.Context, request PostLogoutReque
 	user, ok := GetJWTClaimsFromContext(ctx)
 	if !ok {
 		return PostLogout401JSONResponse{
-			UnauthorizedJSONResponse: UnauthorizedJSONResponse{
-				Message: "Unauthorized",
-			},
+			Message: "Unauthorized",
 		}, nil
 	}
 	return h.impl.PostLogout(ctx, request, user)